Yeah I get what you're saying, that's why I wanted to make sure as I have the limited edition black wii which boot2 is not available, sucks. You think I should go ahead with it and have you got a link to an already converted Matrix theme for 4.2e?

I don't have a link to 4.2e and wouldn't post it if I did cause I have no way of verifying it. I will only post things that I can personally confirm as working. As for going ahead with it, I believe that is your decision to make. I have given you all the info so it is up to you to decide if it is worth the risk.

Mkay Honestly..(dont Wanna Kill Your Spirits) But I Probably Wouldnt Even Be Messin Around with Themes If You Dont Have Boot2... Thankfully I was One Of the Lucky Ones That Got Their Wiis Early. So I Have Boot2 So Im Able To Mess Around With It Knowing Im Pretty Brick safe.But Still I Dont Mess Around With Themes That Wernt Ment For My Version,, (SO YOU KNOW) Themes And Bad WADs Are The Number One Wii Killers!Unless You Know Exactly What You Are Doing With The Converters. DO NOT touch anything thats not meant for you..Its Not Worth Destroyin Your Wii Over.. (Im Sure Many Will Agree) BUT THEIR IS HOPE.. From Every Post Ive Read From People Theme Bricking Their Wii,Since Its The Wii Menu It Changes It Doesnt effect The Homebrew.. So As Long As You Have PRIILOADER Or Bootmii Installed As an ISO(to Where it Loads Before The Wii Menu) You Boot up Homebrew From Either Of Those.(Mainly The Priiloader) Go Back To The Theme Installer And And Change It Back. MAKE SURE You Put The Default Wii Menu on your SD card(With Correct Version And Update)Because When You ChangeThe Default Menu Its Not On The SD Anymore So You Cant Select It. So Download That If You Decide To.. But As Baboo Said,Its Your Descision . Just Dont Say We Didnt Warn You..

If I go ahead with it, should I just create a NAND dump (NAND.bin file) before I do all of this? Or what else do you mean regarding getting the original Wii system menu as I don't know how to do that...

If you have bootmi/ios then a nand dump is almost useless and not recommended cause it tends to crash when you are restoring it. If you want your original menu back thn just install the 0000???.app file you used to convert the theme with using mymenuify the same way you installed the theme.